Plaster-board machine.



A. A. BENDER.

PLASTER BOARD MACHINE. APPLICATION FILED $210.22, 1910. 1,003,322., Patented Sept. 12,1911.

7 SHEETS-SHEET 1.

A. A. BEND ERx PLASTBR BOARD MACHINE.

APPLICATION FILED DEC. 22, 1910 LQQSJ BQQ. v I Patented Sept. 12, 1911.

7 SHEBTSSHEET 2.

IlE-a A. A. BENDER.

PLASTER BOARD MACHINE APPLICATION FILED DEC.22,1910.'

Patented Sept. 12, 1911,

7 SHEETS-SHEET 3.

A. A. BENDBR.

PLASTER BQARD MACHINE.

APPLICATION FILED DBO. 22, 1910.

LQOS 3Q%U Patented Sept. 12, 1911.

7 SHEETS-SHEET 4-.

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A. A. BENDER.

PLASTER BOARD MACHINE.

APPLICATION FILED 13110.22, 1910.

Patented Sept. 12, 1911.

1 'r SHEETS-SHBET 5. f

A. A. BENDER.

. PLASTER BOARD MACHINE.

APPLICATION FILED 11110. 22, 1910.

03,322, I Petented Sept. 12,1911.

'7 SHEETS-SHEET 6.

1 1 I t i 1 I I 1 7 a a 4 1 I 1 1 4 n 1 1 e l a TLllie. 'Z

A A. BENDER.

PLASTER BOARD MACHINE.

APPLIOATION FILED DEC. 22, 1910.

1,003,322 Pa ented Sept. 12, 1911.

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crove the general construction oft this character.

rawings and 'specifittally set forth in the in a similar n'nznner to Fi mine ADOIIPI'I BENDER, DE CHEYENIIE, WYOMING.

PLASTELR-BUARD IVIACl-IINE.

Application filed December 22,

fipecifieatiou of Letters Patent.

Patented Sept. 12,1911.

1910. Serial No. 598,800.

may concern: that it I arunrt, Stale ain new nonts in llasierlioard to hertby declare the follow- .ul. clear, and exact d rdpthm tion, such as will enable others t o which it appcrtains to invraih on rotates to that type of which is employed in the manut is known plaster board .io'eot fiber and plaster of .l a moving web oi paper 'latte ed and compacted structure. )al object of the invention is f inact of the invention is to pro- 'cd mold table for devices of "rd object of the invention is to pro.- 21 improved anechanism for teedlng to the moving we 0. l.

tfijeclf of the invention is to pror fed mechanism for ieeding' the plaster of Paris.

l rt oi": the invention is proved finishing device" ahin S of this description.

ctof the invei'ition is roved i for use w1tto proior use p to pro- 0 and. cutting .aster hoard Inaal'iove ieri-iinct'tcr appai mt the invention general certain novel details rion, combinations of parts, and '1: of mocha-nil n hereinaf er fully illustrated inthe accompanying c :iscornpanving drawings, like charivl'r; oi rr-al'erenceindicate like parts in the views, and Figure 1 is a side elevaa plaster llOflltlli'lfiClllIlO constructed rdancc with this invention, the cengnniiion oi the machine being brolrcn 1 i:-

otler objects in view chine taken from the side opposite to Fig. 1, Fig. -l is a section on the 'line 4-4: of Fig. 1 Fig. 5 is an enlarged section on the line J ---5 of 1, Fig. (3 a section on the line 6--6 of high 5, Fig. 7 is an enlarged side elevation of the plaster of paris feeder and mixer, Fig. 8 is a sec Fig. 7, Fig. 9 a section on the line 99 of Fig. 8, Fig. 10 is an enlarged detail plan view of the finisher. Fig. 11 section on the line 11-11 of -Fig. 10, Fig. is an enlarged detail side elevation of one of the links of the chain mold, Fig. 13 is an enlarged plan view of the mold link shown in 12, Fig. lat is an enlarged cross section through the cutting roll, Fig. 15 is a section on the line 1515 of Fig. 1-1, Fig. 10 is a section on the line 161li of Fig. 1 Fig. 17 is an end elevation of the machine.

In the general construction of this machine there employed a traveling mold table indicated in general at A above which "and at one end thereof is positioned a. paper roll B as shown, the table traveling in such direction that its upper side constantly moves away from the paper roll B. Ad-

jacent this paper roll and above the table is a liberfeedcr indicated in general at C following which is the plaster feeding and mixing mechanism D just beyond which is the finishing mechanism E. Adjacent the other or delivery end of the table A is the trimming and cutting roll F.

The invention is preferably so arranged thatit. may have a portion or the mechanism seated in a pit 20 above which is a frame 21. At one end of the pit 9.0 is located a drum 22. This drum is carried on a shaft 23 arranged for connection to some power mechanism as :1 bolt, motor or the like, this shaft.

. constituting the main or driving shaft for the entire mechanism. At the "opposite end I I l arcuate guide rails 2+1 and these guide rails are continued toward the delivery or power end of the machine by straight rails 25, the latter terminating j in arcu'ate porlions 26 at the delivery end of the ma.- chine. Below thecentral portion of these guide rails and extending beneath the lower ends ,ofi the respective rails 24 and 26 but iii spaced relationthereto are still further guide rails 27. --Ov .er these guide rails and the drum 22 runs the moi-ding table which consists of agseries of cars on on the line 8-8 of of the ihachine there is provided a pair of.

which are preferably termed mold cars.

- Each of these cars is in the form of a body 28 which is provided with grooved Wheels 29 running on the guide rails just described, the arrangement being such that when the cars are passing along the lower string they will riln in lnverted position on the rails 27 and will be guided to their obverse position by the guide rails 24. Each of these cars is provided with a centrally disposed depei-iding lug or tooth 30 which is arranged to be engaged by a bar of pin 31 connecting the webs of the drum 22. These cars are connected in series by means of links 32 disposed at the sides of the cars and pivotally connected thereby. By this means the r0- tation of the drum causes the mold cars to move along the upper guide rails from the paper roll and to the delivery end of the malower end is a roller 37, the shafts of which pass through the slots 38 formed in the side walls of the hopper and the projecting ends of these shafts are connected on each side of the hopper bya pair of links 39', said links being pivotally united centrally between the two shafts and having the pivot point attached to the lower ends of screws 40 which pass up through guides 41 at the top of the IOPPOI and have upon their upper ends thumb or adjusting nuts 42, by means of which the screws can be moved so that the central portion orpivot point of the connecting links may be raised thus drawing the rollers 37 closer together or may be permitted to drop thus allowing the. rollers to move apart. It is to be particularly noted that the two plates 36 are not set in thesame inclination, one of the plates being considerably steeper than the other and that the arrangement of the links and adjusting screws is such that no matter what the adjustment maybe this difference in inclination will always be maintained between the two plates. It is also to be noted that these plates are so arranged that'by proper ma.- nipulationof the adjusting nuts the. edges of the plates may be brought together so that the hopper may be shut off from that portion of the device beneaththe same.

In order that the plates may be completel y closed together when desired, an

- approximately Y-shaped draw member 42 istrained over suitable sheaves on the frame, the branches of this member being terminally connected to the screws 40 and .wall of the device is a spider 44 where'on is supported a series of barsconstitutin a drum 45 and this drum is provided wit a multiplicity of curved disintegrated teeth 46 the teeth being inclined and curved in the direction of rotation of the drum so that as the fiber passes down through the valve plates 36 it is pulled to pieces and fed downward by the rotation of the drum. The fiber from this drum drops upon a bafile or guide plate 47 and passes from this guide plate between a pair of toothed drums 48 carried on shafts 49 both of these drums being arranged to rmolve in the same direction. For the purpose of preventing any of the fiber from being shot over the drums a second battle-plate 50 is provided which extendsfrom the opposite end wall downward and inward. Beneath the drums 48 are other battle plates 51 which are so ar-:

ranged that the fiber in passingtherefrom falls. in a direction inclined against the movement of the paper and the lowermost of. these p'lates.51 is positioned adjacent the upper surface of the mold table.

After the fiber has been deposited on the moving web of paper a plaster of Paris mixture is then depositedon the sheet of fiber. To effect the proper mixing and deposition of this plaster of Paris there is provided a hopper 52 wherethrough passes a transverse shaft at each end of which is a hub 54 and connecting these hubs are U-shaped scraper and agitator blades 55. The bottom of the hopper 52 is rounded as at 56 and is provided with a valved opening 57 wherefrom extends a guide plate 58. Immediately beneath the hopper is a mixing device and this mixing device comprises a transverse shaft 59 whereon is mounted a pair of spiders (10 having a drum 61 formed therea'round. At eificli end of the drum 61 are flanges ($2 and between the flanges G2 is a series of semi-circular buckets (33 so a1= ranged that the plane passing through the edges of each, bucket'will be radial to the axis of the drum. Extending through the flanges 62 are a series of shafts 64 each of said sha its being concentric with a respective bucket. ()n each of these shafts is mounted a pair of hubs 65 and the hubs of each pair are connected by a series of U-shaped beater arms or bars 00, the ends of which is compacted by a hollow perforated roller .and passed .to a slicker after which it is moved along toward the delivery end and takes an initial set during its passage. On arriving adjacent the delivery end the now-formed board has its edges trimmed v and is cut to proper length by the trimming ',and cutting roll. At thedelivery end the boards are taken :off by the attendant and passed on suitable racks and stacked for .delivery. v l 1 There has=thusbeen provided anovel and improved device of the kind 'described and v for the purposespecifiedp I What is claimed is 1. In a plaster board machine, the combinatirnrwith a mold table comprising "an endless chain of molds and means to, supiport rand move the same; of a frameprovided :with means to support a roll of paper, a fiber feeding mechanism in operative relationlto themold table, a plaster feeding mechanism, a fluid supply beneath the laster feeding mechanism, a plaster mixin device beneath said fluid supply and the plaster, feeding mechanism, a compacting roll,

ing from the last mentioned guide plates.

r 3. In a device of the kind described, a fiber feeder comprising a hopper having a pair of guide plates dependingly hinged to the side walls thereof and forming a mouth for the hopper, a toothed feeding roll below the mouth ofthe hopper, guide plates beneath said roll, a pair of disintegrator rolls positioned to receive the material passing from the last mentioned guide plates, and means to vary the distance between the lower edges of the hinged plates. p

4. In a device of the kind described, a fiber feeder comprising a hopper having a pair of guide plates dependingly hinged to the side walls thereof and forming a mouth for the hopper, a toothed feeding roll below the mouth of the hopper, guide plates beneathsaid roll, a pairof disintegrator rolls positioned to receive the material passing from the last mentioned guide plates, and n'lc'ans to vary the distance between the lower edges Zof the hinged plates, said means comprisinga pair of rollers behind I said hinged plates having axles extendingthrough slots formed in the hopper, pairs of, pivotally connected links "each pair of amoaaaz and means to vary the distance between the lower edges of the guide plates, said means being arranged to constantly hold one of said plates at a greater angle to the horizontal than the remaining plate.

6. In adevice of the kind described, a fiber feeder comprisinga hopper having a pair of guide plates dependingly hinged to opposed walls of the hopper and forming a mouth for the hopper, a feeder roll beneath the mouth of the hopper and having its axis displaced laterally of the hopper, and means to vary the distance between the lower edges of the guide plates, said means being arranged to constantly hold one of said plates at a greater angle to the horizontal than the remaining plate and coluprising a pair of rollers behind said guide plates and having' ,ixles extending through slots formed in the hopper, pairs of pivotally connected links, each palr of links connecting respective ends of the rollers and the links being of equal length, and elements to move the pivotal points of said links vertically.

7. In a plaster board machine, an endless carrier, means for supplying a web of paper to said endless carrier, means for disch trging fiber on said web, and a mixer adapted to supply the fiber covered web with a plastic'material, said mixer comprising a frame, a liium rotatably mounted therein, aseries of buckets engaged around the pcriplu iry of the drum, an agitator operativnly mounted in each of said buckets, means to rotate the drum, and other means to rotate the agitators during the rotation of the drum.

9. In a plaster board machine, an endless carrier, a Web of paper riding on said endless carrier, means for supplying a layer of fiber upon said Web, and a mixer above said web supplying a plastic material to the web after application thereto of said fiber, said mixer comprising a frame, a drum shaft journaled in said frame, adrum rotatably mounted on said shaft, a series of buckets arranged around the periphery of the drum, an agitator shaft extending through each bucket, a driving. gear on the drlnn, a gear on each of the agitator shafts meshing with the driving gear, and means to rotate said drum and drum shaft independently.

9. In a plaster board machine, an endless carrier, a web (if paperriding on said endcarrier, means for disposing a layer of fiber on said Web, in combination with a mixer for disposing a plastic material on said layeigof fiber, said mixer comprising a frame a drum shaft journaled in said fran'ie, a drum rotatably nonnted on said shaft and provided with a peripheral flange at each end, a series of buckets arranged around the periphery of the drum, each bucket extending longitudinally of the drum from one of said flanges to the other, an agitator shaft extending through each of flanges, on said drum shaft,

the buckets and journaled in said a driving gear fixed a driven gear on each agitator shaft meshing With said driving gear, and means to rotate said drum and drum shaft independently.

In testimony whereof, I aflix my signature, in presence of two Witnesses.

ADOLPH A. BLENDER. Witnesses P L. LARIVER, LAURENCE MziGUmn. 

